此份材料由08级C6-207寝室郑重出品
(c) The processor performance will be less than optimal.
(d) It takes a longer time to transfer data from the peripheral devices to the chipset. Correct answer is (b)
12. Why is it important to have large amounts of RAM in a computer system?
(a) You cannot load and execute a program unless there is sufficient RAM to hold all of a program's CPU instructions.
(b) Multitasking and large programs run slowly if there is insufficient RAM. (c) Programs cannot access files unless the entire file is first loaded into RAM. (d) RAM continues to be less expensive than hard disk memory. Correct answer is (b)
13. Which of the following is (are) true regarding bottlenecks that degrade the performance of a computer system?
Slow transfer of data between components in a system constitutes a bottleneck. A slow video card can constitute a bottleneck for graphics applications. (a) I and II (b) II only (c) None (d) I only
Correct answer is (a)
Multiple-Choice Quiz 8
1. Which of the following layers are contained within the software of an operating system? Device drivers Kernel BIOS
(a) I and III only (b) I, II, and III (c) II only
(d) I and II only
Correct answer is (d)
2. The file system of an operating system can easily work with files on diverse types of storage devices because
(a) device drivers hide the details involved with accessing storage devices from the operating system
(b) the API provides a consistent interface to the storage devices
(c) storage devices perform the actual file management on their own media
(d) all physical storage devices operate basically the same way with respect to accessing data Correct answer is (a)
3. Which of the following could contain a Master Boot Record? Hard disk drive Floppy disk drive RAM
(a) II and III only (b) I and II only
材料提供者：周玺昊、胡开斌、汪柄辰、石峥、詹民拥、王志超、李江东、王鹏、张磊、赵可可
尊重他人的劳动成果是一种美德
此份材料由08级C6-207寝室郑重出品
(c) I and III only (d) I, II, and III
Correct answer is (b)
4. Which of the layers of software that make up a computer system provides applications with direct access to the operating system? (a) The API
(b) Device drivers (c) The BIOS (d) Scripts
Correct answer is (a)
5. How does the operating system support multiple applications running concurrently on a computer with a single CPU?
(a) The operating system creates an environment for the simultaneous execution of applications.
(b) The operating system quickly switches the CPU back and forth between applications. (c) The operating system contains accounts for multiple users.
(d) The operating system continues to run at the same time input/output devices are running. Correct answer is (b)
6. How would users benefit if the computer industry agreed on a standard for interfacing device drivers to operating systems?
(a) Only one device driver would be needed to communicate with all devices. (b) All operating systems supporting the standard could use the same device driver. (c) Device drivers would never have to be updated after they are installed. (d) Device drivers would require less software and take up less RAM. Correct answer is (b)
7. Which of the following steps are performed by the BIOS during the boot process? Locating a disk drive that has an operating system to be loaded
Loading the necessary device drivers needed by the operating system Loading into RAM the program to load the operating system (a) I, II, and III (b) I and III only (c) I and II only (d) II and III only
Correct answer is (b)
8. Device drivers facilitate communication between which layers of the system? (a) Applications and hardware devices (b) Different hardware devices
(c) The operating system and hardware devices
(d) The operating system and applications using hardware devices Correct answer is (c)
9. Which of the following services are provided by the BIOS? Orchestration of the initial boot process
Management of file creation and file deletion Basic support for devices such as the keyboard
材料提供者：周玺昊、胡开斌、汪柄辰、石峥、詹民拥、王志超、李江东、王鹏、张磊、赵可可
尊重他人的劳动成果是一种美德
此份材料由08级C6-207寝室郑重出品
(a) I and III (b) I and II (c) I only (d) II only
Correct answer is (a)
10. Which of the following consequences are likely to happen when increasing the amount of time that each application can use the CPU, before the operating system preempts to allow another application to use the CPU?
A runnable process will have a greater amount of access to the CPU once it becomes a running task.
There will be fewer blocked processes.
Fewer processes can be multitasked by the operating system. (a) I only (b) I, II, and III (c) I and II only (d) II and III only
Correct answer is (a)
11. A computer has one floppy disk drive, labeled A, and two hard disks, labeled C and D.
Which of the following lists the drives in the order, first-to-last, that the BIOS would typically check during the boot process to find an operating system to load? (a) A:, C:, D: (b) D:, C:, A: (c) C:, A:, D: (d) A:, D:, C:
Correct answer is (a)
12. Which of the following are true about a context switch being performed by the operating system during multitasking?
It occurs whenever the CPU is switched to execute the instructions of a different task.
It needs to save the CPU's registers for a process, so at a later time it can resume processing where it left off.
In a system executing many tasks at once, it has little or no impact on system performance. (a) II and III only (b) I and II only (c) I and III only (d) I, II, and III
13. Which of the following are programs containing software instructions to be executed by the CPU? BIOS
Device driver Operating system (a) I and III only (b) I, II, and III (c) I and II only (d) II and III only
材料提供者：周玺昊、胡开斌、汪柄辰、石峥、詹民拥、王志超、李江东、王鹏、张磊、赵可可
尊重他人的劳动成果是一种美德
此份材料由08级C6-207寝室郑重出品
Correct answer is (b)
14. The illusion of multitasking can be given by switching control of the CPU to a waiting task under which circumstance(s)?
A task controlling the CPU is waiting for user input from a device. A task controlling the CPU is performing output to a device.
A task has been in control of the CPU for longer than some predetermined maximum. (a) I and III only (b) I, II, and III (c) I only
(d) II and III only
Correct answer is (b)
15. Which of the following software layer sequences correctly represents the task of saving a file with a text editor?
(a) operating system, device driver, application, hardware (b) operating system, application, hardware, device driver (c) application, operating system, device driver, hardware (d) application, operating system, hardware, device driver Correct answer is (c)
16. Which of the following is not a reason why similar hardware products typically include their own device drivers to be installed on the system? (a) The hardware interface may be proprietary to a vendor. (b) The hardware interface on one vendor's product may support more functionality. (c) The operating system was released prior to the hardware product becoming available. (d) The new driver corrects problems that were discovered in the application's interface to the device driver. Correct answer is (d)
Multiple-Choice Quiz 9
1. Which of the following options in the Windows operating system can be used to improve aesthetics and convenience? Using the Control Panel
Using the View menu options in My Computer or Explorer
Changing the settings used by BIOS that control the PC's hardware configuration (a) I, II, and III (b) I and II only (c) I and III only (d) II and III only
Correct answer is (b)
2. A keyboard interrupt occur
(a) when the power supply is disconnected (b) each time a key is pressed
(c) only when the ESC key is pressed
(d) only when the ENTER key is pressed Correct answer is (b)
材料提供者：周玺昊、胡开斌、汪柄辰、石峥、詹民拥、王志超、李江东、王鹏、张磊、赵可可
尊重他人的劳动成果是一种美德
此份材料由08级C6-207寝室郑重出品
3. Which of the following operations cause(s) a fault to occur? The hardware is asked to do something it cannot do.
The memory's error correction circuitry detects an uncorrectable error. The program contains an illegal machine instruction. (a) II and III only (b) I, II, and III (c) III only (d) I only
Correct answer is (b) 4. A trap is triggered by (a) an external signal
(b) an attempt to access a non-existent memory location (c) a power surge
(d) the execution of processor instructions Correct answer is (d)
5. Which of the following is an example of an interrupt?
(a) A device indicates to the operating system that it has received input. (b) The CPU stops the operating system due to an internal error.
(c) Betty, a user, indicates to the operating system that she wants to stop an application. (d) An application informs the operating system that it has finished executing. Correct answer is (a)
6. Which of the following statements are true concerning interrupts? An interrupt causes the CPU to stop executing the application program. All devices are assigned the same priority and their interrupts are handled in the order in which they occur.
Interrupts are signals from devices that need immediate attention by the operating system. (a) I, II, and III (b) I and III only (c) I and II only (d) II and III only Correct answer is (b)
7. Within Windows, where can a user find applications for changing the operating system configuration? (a) Online help (b) File manager
(c) Resource manager (d) Control panel Correct answer is (d)
8. What allows the Windows Startup Folder to be used to customize the operation of the computer system?
(a) It contains files to be deleted automatically by Windows after the system is booted. (b) It contains a list of programs for Windows to execute automatically after a user logs on. (c) It is a safe place to store personal documents created by applications.
(d) It contains the operating system files to be loaded during the boot process.
材料提供者：周玺昊、胡开斌、汪柄辰、石峥、詹民拥、王志超、李江东、王鹏、张磊、赵可可
尊重他人的劳动成果是一种美德